Self-heating soldering-tool.



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EDWIN t. BARBER, oF CHICAGO, ILLINOIS.

SELF-HEATING sometime-Tool..

SPECIFICATION forming part of Letters Patent No. 650,163, date-a May 22,1900. Application ld November 1, 1899.` Serial No. 735.647. (No model.)

To all whom t may concern.-

Be it known that I, EDWIN L. BARBER, al citizen of the United States,and a resident of Chicago, county of Cook, and State of Illinois, haveinvented certain newand useful Improvements in Self-HeatingSoldering-Tools, of which'the following isa specification, and which areillustrated in the accompanying drawings, forming a part thereof.

This invention relates to that type oi' tools in which there is employeda hydrocarbon, such as gasolene, as a fuel, the storage-reservoir beingin the handle of the implement, the generator and burner being in itsshank, and a solderingpoint being secured in such position that theiiame from the burner is thrown upon it.

One object of the present invention is to provide means for feeding thegasolene from the cooler part of the reservoir even when the supply iswell nigh exhausted and to pro vide an improved form of soldering pointor slug and improved means for detachablysecuring it to the shank of thehandle and directing the flame upon it.

Afurther object of the invention is to adapt the tool for other usesthan the heating of a soldering-point, means being provided fordisconnecting the outer end of the shank, so that the kb urner may beused as a simple torch for heating any object.

These objects are attained in the construction which is fullyhereinafter described and which vis illustrated in the accompanyingdrawings, in which- Figure 1 is a side elevation ofthe tool, a portionbeing broken away. Fig. 2 is a central longitudinal section. Fig. 3 is abottom plan. Fig. 4 is a sectional view on the line 4 4 of Fig.,2, andFig. 5 is a detail section on the line 5 5 of Fig. 2. I

The drawings represent the preferred proportional parts; but the samescale has not been followed through all of the figures, the detailsbeing shown in larger views for the purpose of clearness.

The soldering-point 10 is in the form of a slu g pointed at both ends,one end being somewhat iiattened to adapt it for doing what is known inthe trade as bottom work. This slug is secured within a collar 11 bymeans of set-screws 12, so that it may be readily re- Imoved, and eitherend may be inserted within lthe` collar. shank of the implement consistsof a pair of The lower or outer end of the arms 13 13, to which thecollar 11 is rigidly lattached and which are detachably connected .witha pair of upper arms 13 13a, which in turn` are secured in any suitablemanner to vthe handle. tubular handpiece 14, preferably of wood or othermaterial having lowr conductivity of heat, and a cylindrical reservoir15 Within the v,member 14.

. The burner consists of a Bunsen tube 16, to the upper end of which isV.fitted alchambered block 18, which constitutes the generator, asupply-tube 17, leading from the reser- `Voir to the chamber of thisgenerator, and a `small .aperture 19, leading from thechamber jof thegenerator, so as to direct a jet of gas centrally into the burner-tube.`

The latter member consists of a :reservoir, the stem being provided witha `handpiece 25 at its upper end. The stem 22 enters the generatorthrough a suitable stuing-box 23 and is in screw-threaded engage- .menttherewith, so that the valve isl seated and unseated by simply rotatingthe stem.

A pan 26 is secured to the shank ofthe implement in such position thatgasolene may be discharged into it through the port 19 and a suitableaperture in the side wall of the burner-tube 16 for the purpose ofstarting the generation of the vaporan expedient common in connectionwith vapor-burners of all kinds.

The reservoir is enlarged in the present inf stance by placing a ball 27at the outer end of the handle, the upper end 28 of the cylindricalportion of the reservoir 15 being continued into the chamber of thisball. The supply-tube 17 extends upward through the tube 15 into theball 27, and its extreme end is turned laterally and backwardly, so asto dip into the annular cup that is formed within the ball 27 by theprolonged end 2S of the cylindrical portion of the reservoir. By

means of this expedient the gasolene,fwhich always occupies thespherical portion of the IOO vided with a central duct which iscounter-` 32,"so as'fto rei-nforce the check-valve 35.

bored at each end, thecou-nterboreat'the in-` ner end accommodating andproviding a seat for a check-valve 33, which is nseated bymeans of aspring 34 reacting against an aperturedD plug or nipple 35,V screwedintothe counter. bore of the plug 32. The counterbore at theouter end'ofthe plu-g32 is screw-threaded to;Y

receive a member 36, which serves the doubleppurpose of a'nipple -forthe attachment of. an air-pump Vnipple and a valve for closing thereduced portion of theV duct of the plug The member-36 has a ductleadingfr'om its outer end-almost to its inner end and then openinglaterally through its side Wall, as shown at" 37, a channel 38 being cutfrom the inner end of thepassage 37 to the inner end of themember;36,;so thatwhen the latter member is'- turned back to unseat it'as a valve commu-V nication is openedthrough its passage to thet ductof the plug 32. The outer end of the passage 37 is counterboredV andscreW-thread-- edyfor the-attachment of an air-pump nipple`(-Not'shown.) `The plug 32 is provided with thumbfpieces 32a, by whichit may be con veniently turned, and the member 36 is prof :vided with athumb-piece 39 for thesame purpose. l' Y v To the lowerends of the arms13?* there is attachedja band 40, and to the upper 'ends of the arms 13there is attached a band 41. The bands 40 and 4l are adapted to engageeach oth-ertelescopically, their joint being Yof the rabbet form, Vso-asto-'bring their outer surfaces flush. Thumb-screws 42 are employed forsecuring the'two bands 40 and 41 together, `sothat they may be readilydisconnectedto remove 'the soldering-point when it. is desiredjtouse theimplement as a torch. The generator and burner are vsecured to the band40 `by means -of screws 43. v The collar 1l is sufficiently large toconven iently receive theV slug 10, and intermediate of the screws 12its inner Wall is recessed, as f showneat 44togprprvide 'ample passages.for

the flame, wliichgjbeing directed upon the up' per point, of' the slug10, isA deflected ',out# Wardl-yby the'tapering forni at this point intothegpa'ssages44 and envelops the entire bodyportion of the-slug 10\Welldown' to -its outer point, so that the heat is applied in such man- :nerthat it isjnot necessary to depend simplyupongthe'conductivity of themetal'tocarry'; it to the `outergpoint, which it is-the purpose` toheat.Y 1p While I have shown the implement Without a sleeve or .hood forinclosing the burner other than the arms 13, it is obvious that such adevice may be applied to the implement, if desired.

In Vpractice the reservoir is filled nearly full of'gasolene, andthenbythe application of an air-pump the -iiuid is placed undercompression. Y Upon opening the needle-valve the `iluid will bedischarged into, the burnertube 16, and the implement being held inproper position will find its way into the pan ,26... Being ignitedinthis pan, the generator quickly becomes heated and the discharge`'frnit'le'p'ort L19 is in the form of a vapor, Vvwhich, igniting fromthe flame of the pan, quickly heats vthe soldering-point; .Before thepressure developed within the" reservoir by means of the air-pump hasbeen dissipated the handlehas become" heated suiiiciently so that thehighly-volatile gasolene will main- -tain a pressure sufticient to expel'the vapor dro'carbon vapor in the reservoir renders it immaterial alsowhether a constant supplyof `fluid is provided'within thetube 17, Sothatvthough the reservoir may have'become nearly emptied'of its contents.-

In ordinary practicesuc'h an implement is never Ylong in'one position,and WithoutA 'any precaution upon the part of the Vuser itwill in theordinary course of his Work'b'e brought ,quency/ to Vkeep the cupsurrounding theend 28 of the tubular portion-of the reservoircow `inpractice thatit is advisable todirect nthe supply of fuel from the outerend of thereservoir in a tool of this kind,-for the reason that the toolis frequentlyused Wit-h its point elevated, and all oftheadvantages-gained by such means are "present in the implement hereinshown and' described, there being the addeda'dvantage of theretentionofa constant supply of liquid fuel Within the cup in the sphericalportionof the reservoir well removed from the liame. The implement'whenin use is changed in its position sorapidly that there is always asufficient quantity of .the liquid gasolene delivered -to the tube 17and at suliiciently-frequentintervals so that "the iame is maintainedwithout interruption or material variation. I claim as my invention'- 1^tion, a burner,'a reservoir forming thehan'dle `of the torch, a cupWithin the reservoir 'and being'located adjacent to one end thereof andhaving its mouth directed to'such end sothat las such end of thereservoiris raised the cup will be filled with the liquid fuel,and-atube 'leading from such cup `to the burner.

2. In a vapor-burning torch, in combina- San-d having a"1cylindricalportion forming a handle for theV torch and beingenlarge'd at theimplement may be freely handled -in`use1 without danger ofcutting'oifthe"ame,-even\ to a horizontal position with sutlicientfre-Astantly suppliedwith liquid fuel; It is found 1. In a vapor-burningtorch, in 'combinaa at a suitable velocity. The presence of' hy- IOO IIO

`tion, a burner, a Areservoir attached thereto one end, the cylindricalportion being prolonged into the enlarged portion to form an annularcup, and a tube leading from such cup to the burner, substantially asdescribed.

3. In a vapor-burning torch, in combination, a burner, a reservoirattached thereto and having a cylindrical portion forming a handle forthe torch and being enlarged at its outer end, the cylindrical portionbeing prolonged into the enlarged portion to form lo an annular cup, anda tube leading from such' cup to the burner, substantially as described.

EDWIN L. BARBER. Witnesses:

LOUIS K. GILLsoN, PAUL CARPENTER.

